Re: Storage media
Writeable CDs and DVDs are not as long lasting as Flash. The dye fades. You can kill them in days to months left on a windowsill. Pressed ones are OK though the reflective layer might corrode.
An old HDD powered down beats tape, which beats Flash which beats dye based writeable CD /DVD.
The MO disks might be good for long life, last 3.5" size was maybe 250M? Far better than the rubbish ZIP drives.